Effect masses and non-parabolicity in GaxIn1-xAs
- 10 May 1985
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 18 (13) , 2667-2676
- https://doi.org/10.1088/0022-3719/18/13/013
Abstract
Measurements are reported of frequency- and temperature-dependent cyclotron resonance in the ternary alloy GaxIn1-xAs, close to its lattice match with InP. The band-edge effective mass is found to be 0.041 m0 for x=0.47, in agreement with earlier measurements, but it is found that the non-parabolicity of the conduction band is approximately double that expected on the basis of k.p perturbation theory. This is thought to be due to alloy disorder. Magnetophonon resonance was also observed, giving a further measurement of the effective mass, together with the first observation of two-phonon-mode behaviour in this material.Keywords
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